TY - JOUR AU - Kenneth Lee Jones TI - An Elementary Lemma on Sequences of Integers and Its Apllications to Functional Analysis. JO - Mathematische Zeitschrift PY - 1972 SP - 299 EP - 307 VL - 126 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1972__126_171742/ ID - MZ_1972__126_171742 ER -